- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- MSA Storage
- >
- Re: Array &logical drive question -
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-30-2008 05:02 AM
тАО05-30-2008 05:02 AM
Array &logical drive question -
Or does the ACU automatically assign 7 drives per array?
Is there any way to tell which is the case? Or does the acu also automagically give the best performing configuration?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-30-2008 10:21 AM
тАО05-30-2008 10:21 AM
Re: Array &logical drive question -
A (SmartArray disk drive) array defines which physical disk drives belong to the group. One or more logical drives fit into a disk drive array.
If you have arrays A and B, then one array and all logical drives within that array span 7 physical disk drives and the other array spans the remaining physical disk drives.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 12:22 AM
тАО06-02-2008 12:22 AM
Re: Array &logical drive question -
This would seem not to be the case then? Not only is the logical drive size limited to 2TB but the array is also limited. This, then, begs the question - what is the ACU doing when it allows you to create and array using all 42 drives and then divides that up into 2 TB luns / drives. Shouldnt there be an error at the point you try to create an array bigger than 2TB?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 12:56 AM
тАО06-02-2008 12:56 AM
Re: Array &logical drive question -
And the great thing is - I've just checked and the advisory is still present:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00622089
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-02-2008 01:24 AM
тАО06-02-2008 01:24 AM
Re: Array &logical drive question -
My problem is that i can't get the benefit of all 42 drives unless i'm willing to waste or throw away 5 sixths of my available storage. So now i need to experiment and figure out which is the lesser of two evils - 42 drives in an array with each drive being a member of 6 different logical drives, versus 6x arrays of 7 drives. My money is on the latter but HP recommend for 1.5TB data in millions of small files and folders that i shold be using a 60 drive array. This is quite obviously impossible to do with current limitations (unless i'm missing something)
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-16-2008 03:56 AM
тАО06-16-2008 03:56 AM
Re: Array &logical drive question -
I do not sure what you up to but I think you have to choose first what is important for your application:
1. "performance" than choose an Array with RAID1+0, bare in mind allocate pairs from different enclosures.
2. Volumes than choose an Array with RAID 5, bare in mind do not allocate more than 14 disk in an array. Not advisable for transaction log of database or exchange.
The more disks in array the more performance you get.
Best regards, Herman